diff --git a/services/surfaceflinger/RenderEngine/TEST_MAPPING b/services/surfaceflinger/RenderEngine/TEST_MAPPING
new file mode 100644
index 0000000..995dba1
--- /dev/null
+++ b/services/surfaceflinger/RenderEngine/TEST_MAPPING
@@ -0,0 +1,7 @@
+{
+  "presubmit": [
+    {
+      "name": "librenderengine_test"
+    }
+  ]
+}
diff --git a/services/surfaceflinger/RenderEngine/gl/GLES20RenderEngine.cpp b/services/surfaceflinger/RenderEngine/gl/GLES20RenderEngine.cpp
index 5c4c3d5..dbf50c5 100644
--- a/services/surfaceflinger/RenderEngine/gl/GLES20RenderEngine.cpp
+++ b/services/surfaceflinger/RenderEngine/gl/GLES20RenderEngine.cpp
@@ -650,6 +650,13 @@
     } while (true);
 }
 
+status_t GLES20RenderEngine::drawLayers(const DisplaySettings& /*settings*/,
+                                        const std::vector<LayerSettings>& /*layers*/,
+                                        ANativeWindowBuffer* const /*buffer*/,
+                                        base::unique_fd* /*displayFence*/) const {
+    return NO_ERROR;
+}
+
 void GLES20RenderEngine::setViewportAndProjection(size_t vpw, size_t vph, Rect sourceCrop,
                                                   ui::Transform::orientation_flags rotation) {
     int32_t l = sourceCrop.left;
diff --git a/services/surfaceflinger/RenderEngine/gl/GLES20RenderEngine.h b/services/surfaceflinger/RenderEngine/gl/GLES20RenderEngine.h
index 4f03a90..b08e096 100644
--- a/services/surfaceflinger/RenderEngine/gl/GLES20RenderEngine.h
+++ b/services/surfaceflinger/RenderEngine/gl/GLES20RenderEngine.h
@@ -73,6 +73,10 @@
     void unbindFrameBuffer(Framebuffer* framebuffer) override;
     void checkErrors() const override;
 
+    status_t drawLayers(const DisplaySettings& settings, const std::vector<LayerSettings>& layers,
+                        ANativeWindowBuffer* const buffer,
+                        base::unique_fd* displayFence) const override;
+
     // internal to RenderEngine
     EGLDisplay getEGLDisplay() const { return mEGLDisplay; }
     EGLConfig getEGLConfig() const { return mEGLConfig; }
diff --git a/services/surfaceflinger/RenderEngine/include/renderengine/DisplaySettings.h b/services/surfaceflinger/RenderEngine/include/renderengine/DisplaySettings.h
new file mode 100644
index 0000000..5941cdf
--- /dev/null
+++ b/services/surfaceflinger/RenderEngine/include/renderengine/DisplaySettings.h
@@ -0,0 +1,61 @@
+/*
+ * Copyright 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#include <math/mat4.h>
+#include <ui/GraphicTypes.h>
+#include <ui/Rect.h>
+#include <ui/Region.h>
+
+namespace android {
+namespace renderengine {
+
+// DisplaySettings contains the settings that are applicable when drawing all
+// layers for a given display.
+struct DisplaySettings {
+    // Rectangle describing the physical display. We will project from the
+    // logical clip onto this rectangle.
+    Rect physicalDisplay;
+
+    // Rectangle bounded by the x,y- clipping planes in the logical display, so
+    // that the orthographic projection matrix can be computed. When
+    // constructing this matrix, z-coordinate bound are assumed to be at z=0 and
+    // z=1.
+    Rect clip;
+
+    // Global transform to apply to all layers.
+    mat4 globalTransform;
+
+    // Maximum luminance pulled from the display's HDR capabilities.
+    float maxLuminence;
+
+    // Output dataspace that will be populated if wide color gamut is used, or
+    // DataSpace::UNKNOWN otherwise.
+    ui::Dataspace outputDataspace;
+
+    // Additional color transform to apply in linear space after transforming
+    // to the output dataspace.
+    mat4 colorTransform;
+
+    // Region that will be cleared to (0, 0, 0, 0) prior to rendering.
+    // clearRegion will first be transformed by globalTransform so that it will
+    // be in the same coordinate space as the rendered layers.
+    Region clearRegion;
+};
+
+} // namespace renderengine
+} // namespace android
diff --git a/services/surfaceflinger/RenderEngine/include/renderengine/LayerSettings.h b/services/surfaceflinger/RenderEngine/include/renderengine/LayerSettings.h
new file mode 100644
index 0000000..facea21
--- /dev/null
+++ b/services/surfaceflinger/RenderEngine/include/renderengine/LayerSettings.h
@@ -0,0 +1,92 @@
+/*
+ * Copyright 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#include <math/mat4.h>
+#include <math/vec3.h>
+#include <renderengine/Texture.h>
+#include <ui/FloatRect.h>
+#include <ui/GraphicBuffer.h>
+#include <ui/GraphicTypes.h>
+#include <ui/Rect.h>
+#include <ui/Region.h>
+#include <ui/Transform.h>
+
+namespace android {
+namespace renderengine {
+
+// Metadata describing the input buffer to render from.
+struct Buffer {
+    // Buffer containing the image that we will render.
+    // If buffer == nullptr, then the rest of the fields in this struct will be
+    // ignored.
+    sp<GraphicBuffer> buffer;
+
+    // Texture identifier to bind the external texture to.
+    // TODO(alecmouri): This is GL-specific...make the type backend-agnostic.
+    uint32_t textureName;
+
+    // Whether to use filtering when rendering the texture.
+    bool useTextureFiltering;
+
+    // Transform matrix to apply to texture coordinates.
+    mat4 textureTransform;
+
+    // Wheteher to use pre-multiplied alpha
+    bool usePremultipliedAlpha;
+
+    // HDR color-space setting for Y410.
+    bool isY410BT2020;
+};
+
+// Metadata describing the layer geometry.
+struct Geometry {
+    // Boundaries of the layer.
+    FloatRect boundaries;
+
+    // Transform matrix to apply to mesh coordinates.
+    mat4 positionTransform;
+};
+
+// Descriptor of the source pixels for this layer.
+struct PixelSource {
+    // Source buffer
+    Buffer buffer;
+
+    // The solid color with which to fill the layer.
+    // This should only be populated if we don't render from an application
+    // buffer.
+    half3 solidColor;
+};
+
+// The settings that RenderEngine requires for correctly rendering a Layer.
+struct LayerSettings {
+    // Geometry information
+    Geometry geometry;
+
+    // Source pixels for this layer.
+    PixelSource source;
+
+    // Alpha option to apply to the source pixels
+    half alpha;
+
+    // Color space describing how the source pixels should be interpreted.
+    ui::Dataspace sourceDataspace;
+};
+
+} // namespace renderengine
+} // namespace android
diff --git a/services/surfaceflinger/RenderEngine/include/renderengine/RenderEngine.h b/services/surfaceflinger/RenderEngine/include/renderengine/RenderEngine.h
index 122271f..f5d3d6b 100644
--- a/services/surfaceflinger/RenderEngine/include/renderengine/RenderEngine.h
+++ b/services/surfaceflinger/RenderEngine/include/renderengine/RenderEngine.h
@@ -23,8 +23,10 @@
 
 #include <android-base/unique_fd.h>
 #include <math/mat4.h>
+#include <renderengine/DisplaySettings.h>
 #include <renderengine/Framebuffer.h>
 #include <renderengine/Image.h>
+#include <renderengine/LayerSettings.h>
 #include <ui/GraphicTypes.h>
 #include <ui/Transform.h>
 
@@ -64,6 +66,11 @@
 
     virtual ~RenderEngine() = 0;
 
+    // ----- BEGIN DEPRECATED INTERFACE -----
+    // This interface, while still in use until a suitable replacement is built,
+    // should be considered deprecated, minus some methods which still may be
+    // used to support legacy behavior.
+
     virtual std::unique_ptr<Framebuffer> createFramebuffer() = 0;
     virtual std::unique_ptr<Surface> createSurface() = 0;
     virtual std::unique_ptr<Image> createImage() = 0;
@@ -133,6 +140,37 @@
     // queries
     virtual size_t getMaxTextureSize() const = 0;
     virtual size_t getMaxViewportDims() const = 0;
+
+    // ----- END DEPRECATED INTERFACE -----
+
+    // ----- BEGIN NEW INTERFACE -----
+
+    // Renders layers for a particular display via GPU composition. This method
+    // should be called for every display that needs to be rendered via the GPU.
+    // @param settings The display-wide settings that should be applied prior to
+    // drawing any layers.
+    // @param layers The layers to draw onto the display, in Z-order.
+    // @param buffer The buffer which will be drawn to. This buffer will be
+    // ready once displayFence fires.
+    // @param displayFence A pointer to a fence, which will fire when the buffer
+    // has been drawn to and is ready to be examined. The fence will be
+    // initialized by this method. The caller will be responsible for owning the
+    // fence.
+    // @return An error code indicating whether drawing was successful. For
+    // now, this always returns NO_ERROR.
+    // TODO(alecmouri): Consider making this a multi-display API, so that the
+    // caller deoes not need to handle multiple fences.
+    virtual status_t drawLayers(const DisplaySettings& settings,
+                                const std::vector<LayerSettings>& layers,
+                                ANativeWindowBuffer* const buffer,
+                                base::unique_fd* displayFence) const = 0;
+
+    // TODO(alecmouri): Expose something like bindTexImage() so that devices
+    // that don't support native sync fences can get rid of code duplicated
+    // between BufferStateLayer and BufferQueueLayer for binding an external
+    // texture.
+
+    // TODO(alecmouri): Add API to help with managing a texture pool.
 };
 
 class BindNativeBufferAsFramebuffer {
diff --git a/services/surfaceflinger/RenderEngine/tests/Android.bp b/services/surfaceflinger/RenderEngine/tests/Android.bp
new file mode 100644
index 0000000..65b7c82
--- /dev/null
+++ b/services/surfaceflinger/RenderEngine/tests/Android.bp
@@ -0,0 +1,36 @@
+// Copyright 2018 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+cc_test {
+    name: "librenderengine_test",
+    defaults: ["surfaceflinger_defaults"],
+    test_suites: ["device-tests"],
+    srcs: [
+        "RenderEngineTest.cpp",
+    ],
+    static_libs: [
+        "libgmock",
+        "librenderengine",
+    ],
+    shared_libs: [
+        "libcutils",
+        "libEGL",
+        "libGLESv2",
+        "libgui",
+        "liblog",
+        "libnativewindow",
+        "libui",
+        "libutils",
+    ],
+}
diff --git a/services/surfaceflinger/RenderEngine/tests/RenderEngineTest.cpp b/services/surfaceflinger/RenderEngine/tests/RenderEngineTest.cpp
new file mode 100644
index 0000000..345c7ea
--- /dev/null
+++ b/services/surfaceflinger/RenderEngine/tests/RenderEngineTest.cpp
@@ -0,0 +1,52 @@
+/*
+ * Copyright 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <gtest/gtest.h>
+
+#include <renderengine/RenderEngine.h>
+#include <ui/PixelFormat.h>
+
+namespace android {
+
+class RenderEngineTest : public ::testing::Test {
+public:
+    RenderEngineTest() {
+        // Initialize with some sane defaults.
+        // TODO(alecmouri): This should probably be the same instance used by
+        // SurfaceFlinger eventually.
+        mRE = renderengine::RenderEngine::create(static_cast<int32_t>(ui::PixelFormat::RGBA_8888),
+                                                 0);
+    }
+
+    status_t drawEmptyLayers() {
+        renderengine::DisplaySettings settings;
+        std::vector<renderengine::LayerSettings> layers;
+        // Meaningless buffer since we don't do any drawing
+        sp<GraphicBuffer> buffer = new GraphicBuffer();
+        base::unique_fd fence;
+        return mRE->drawLayers(settings, layers, buffer->getNativeBuffer(), &fence);
+    }
+
+private:
+    std::unique_ptr<renderengine::RenderEngine> mRE;
+};
+
+TEST_F(RenderEngineTest, drawLayers_noLayersToDraw_works) {
+    status_t result = drawEmptyLayers();
+    ASSERT_EQ(NO_ERROR, result);
+}
+
+} // namespace android
diff --git a/services/surfaceflinger/tests/unittests/mock/RenderEngine/MockRenderEngine.h b/services/surfaceflinger/tests/unittests/mock/RenderEngine/MockRenderEngine.h
index 6813cda..afca63a 100644
--- a/services/surfaceflinger/tests/unittests/mock/RenderEngine/MockRenderEngine.h
+++ b/services/surfaceflinger/tests/unittests/mock/RenderEngine/MockRenderEngine.h
@@ -17,13 +17,15 @@
 #pragma once
 
 #include <gmock/gmock.h>
-
+#include <renderengine/DisplaySettings.h>
 #include <renderengine/Framebuffer.h>
 #include <renderengine/Image.h>
+#include <renderengine/LayerSettings.h>
 #include <renderengine/Mesh.h>
 #include <renderengine/RenderEngine.h>
 #include <renderengine/Surface.h>
 #include <renderengine/Texture.h>
+#include <ui/GraphicBuffer.h>
 
 namespace android {
 namespace renderengine {
@@ -75,6 +77,9 @@
     MOCK_METHOD1(drawMesh, void(const Mesh&));
     MOCK_CONST_METHOD0(getMaxTextureSize, size_t());
     MOCK_CONST_METHOD0(getMaxViewportDims, size_t());
+    MOCK_CONST_METHOD4(drawLayers,
+                       status_t(const DisplaySettings&, const std::vector<LayerSettings>&,
+                                ANativeWindowBuffer* const, base::unique_fd*));
 };
 
 class Surface : public renderengine::Surface {